The siege of

Massilia Massalia (Greek: Μασσαλία; Latin: Massilia; modern Marseille) was an ancient Greek colony founded ca. 600 BC on the Mediterranean coast of present-day France, east of the river Rhône, by Ionian Greek settlers from Phocaea, in Western An ...

, including two naval engagements, was an episode of

Caesar's Civil War Caesar's civil war (49–45 BC) was one of the last politico-military conflicts of the Roman Republic before its reorganization into the Roman Empire. It began as a series of political and military confrontations between Gaius Julius Caesar and ...

, fought in 49 BC between forces loyal to the

Optimates Optimates (; Latin for "best ones", ) and populares (; Latin for "supporters of the people", ) are labels applied to politicians, political groups, traditions, strategies, or ideologies in the late Roman Republic. There is "heated academic dis ...

and a detachment of

Caesar Gaius Julius Caesar (; ; 12 July 100 BC – 15 March 44 BC), was a Roman general and statesman. A member of the First Triumvirate, Caesar led the Roman armies in the Gallic Wars before defeating his political rival Pompey in a civil war, an ...

's army. The siege was conducted by Gaius Trebonius, one of Caesar's senior

legates A ''legatus'' (; anglicised as legate) was a high-ranking Roman military officer in the Roman Army, equivalent to a modern high-ranking general officer. Initially used to delegate power, the term became formalised under Augustus as the office ...

, while the naval operations were in the capable hands of Decimus Brutus, Caesar's naval expert. Lucius Domitius Ahenobarbus had become

proconsul A proconsul was an official of ancient Rome who acted on behalf of a consul. A proconsul was typically a former consul. The term is also used in recent history for officials with delegated authority. In the Roman Republic, military command, or ...

Gaul Gaul ( la, Gallia) was a region of Western Europe first described by the Romans. It was inhabited by Celtic and Aquitani tribes, encompassing present-day France, Belgium, Luxembourg, most of Switzerland, parts of Northern Italy (only during ...

and was sent to gain control of Massilia (modern

Marseille Marseille ( , , ; also spelled in English as Marseilles; oc, Marselha ) is the prefecture of the French department of Bouches-du-Rhône and capital of the Provence-Alpes-Côte d'Azur region. Situated in the camargue region of southern Fra ...

) in order to oppose Caesar. As Caesar marched to

Hispania Hispania ( la, Hispānia , ; nearly identically pronounced in Spanish, Portuguese, Catalan, and Italian) was the Roman name for the Iberian Peninsula and its provinces. Under the Roman Republic, Hispania was divided into two provinces: Hisp ...

(en route to confront Pompey's legions), the Massiliots closed their gates to him, having allied with Ahenobarbus and the Optimates. Roused by their hostile actions, he commenced a siege against Massilia, leaving the newly raised XVII, XVIII, and XIX legions to conduct the siege under the command of Gaius Trebonius. He also placed Decimus Brutus in charge of his fleet there. Caesar himself marched with his veteran legions to Hispania to fight the Pompeian generals Lucius Afranius and

Marcus Petreius Marcus Petreius (110 BC – April 46 BC) was a Roman politician and general. He was a client of Pompey and like Pompey he came from Picenum a region in eastern Italy. He cornered and killed the notorious rebel Catiline at Pistoia. Career The ch ...

. He would return to the siege of Massilia after defeating his opponents at the battle of Ilerda. After the siege had begun, Ahenobarbus arrived in Massilia to defend it against the Caesarian forces. In late June, Caesar's ships, although they were less skilfully built than those of the Massiliots and outnumbered, were victorious in the ensuing naval battle. Gaius Trebonius conducted the siege using a variety of siege machines including

siege tower A Roman siege tower or breaching tower (or in the Middle Ages, a belfry''Castle: Stephen Biesty's Cross-Sections''. Dorling Kindersley Pub (T); 1st American edition (September 1994). Siege towers were invented in 300 BC. ) is a specialized siege ...

s, a siege-ramp, and a " testudo-ram". Gaius Scribonius Curio, careless in adequately guarding the Sicilian Straits, allowed Lucius Nasidius to bring more ships to the aid of Ahenobarbus. He fought a second naval battle with Decimus Brutus in early September, but withdrew defeated and sailed for Hispania. Trebonius built a stationary tower, square and six stories in height, under the very walls of the city and in the face of a rain of missiles from its engines. The walls of the tower were of brickwork thick. When the lowest storey was built it was covered with a solid fireproof roof which was not secured to the walls but rested upon them like a lid. The eaves projected considerably, and from them screens were hung on all sides, covering all the walls. By means of screws the whole canopy, roof, and screens was now raised to the height of one storey and the workmen proceeded to build the walls of that storey under its protection. This process was repeated in the same manner until the full height of the tower was attained.Caesar: de Bello Civili, Book II, 8, 9. The Massiliots valiantly defended against the siege machines and works. They threw down burning pitch and pine-shavings and the Caesarians undermined the foundations of their city walls. At one point they seemed likely to surrender and declare a truce, but at night they cunningly destroyed the siege works in a gross violation of the treaty, according to Caesar's own account ('' Bellum Civile'' 2.14; alternatively, Dio 41.25.2 records that the Massiliots destroyed these works in response to a surprise attack by the Caesarian forces). The city's inhabitants were then near surrender. At the final surrender of Massilia, Caesar showed his usual leniency and Lucius Ahenobarbus fled to Thessaly in the only vessel that was able to escape from the Populares. Afterwards, Massilia was allowed to keep nominal autonomy, due to ancient ties of friendship and support of Rome, along with some territories while most of its empire was confiscated by Julius Caesar.

In fiction

*In Colleen McCullough's novel ''Caesar'' (the ''Master of Rome'' series) the siege is described in some detail. *In

Steven Saylor Steven Saylor (born March 23, 1956) is an American author of historical novels. He is a graduate of the University of Texas at Austin, where he studied history and classics. Saylor's best-known work is his '' Roma Sub Rosa'' historical myster ...

's novel Last Seen in Massilia (the

Roma Sub Rosa ''Roma Sub Rosa'' is a series of historical mystery novels by Steven Saylor set in ancient Rome and therefore populated by famous historic roman citizens. The phrase "Roma Sub Rosa" means, in Latin, "Rome under the rose." If a matter was ''sub ros ...

series) the siege is the setting for the story.

References

Julius Caesar 49 BC

Ancient Massalia

{{Ancient Rome topics